[mira_talk] Re: NFS and log file
- From: Sven Klages <sir.svencelot@xxxxxxxxxxxxxx>
- To: mira_talk@xxxxxxxxxxxxx
- Date: Tue, 8 Feb 2011 21:44:21 +0100
That's probably a matter of Euros ...
For the Isilon data storage system Illumina recommends for their Hiseq2000
systems I can buy a few 48core servers with loads of RAM and TB of local
diskspace :-)
It is probably not a bad idea to have enough local (cheap) disk space for
the usual assembly tasks. Roche's Newbler gets more sensitive to fast IO as
well and will probably run into problems with huge datasets on slow IO
(standard) NFS mounts or heavy loaded disks ..
my 2p,
Sven
2011/2/8 Robert Bruccoleri <bruc@xxxxxxxxxxxxxxxxxxxxx>
> Dear Mira Users,
> I'm using Mira in a Linux cluster environment with Isilon storage
> provided via NFS and Infiniband. In our environment, using NFS works
> reasonably well. I do some delays relative to locally mounted storage, but
> it's not significant. Most of the time, Mira is CPU limited.
> Your mileage may vary.
>
> Bob
>
>
> Bastien Chevreux wrote:
>
> On Tuesday 08 February 2011 19:12:48 CRISTINA FRIAS LOPEZ wrote:
>
>
> I have read in the manual and search in the foro about NFS.
> You have to force Mira to write the log file in the NFS or better if you
> can specify that this file was wrote in a local disk.
>
>
> Quite correct.
>
>
>
> So, my question is that these solution are fine or is better use
> another network system file?
>
>
> Whenever possible, try to have input/output operations on local disks. This
> is
> not only valid for MIRA, but for all programs which have to move around
> gigabytes of data.
>
> Any kind of networking layer (NFS or whatever) will slow down input / output.
> Perhaps with the exception of specialised high-end gear from vendors who'll
> charge you the equivalent of several hundreds harddisks worth to get the
> network up and running. Though I cannot really vouch for it as I never tested
> MIRA on such an environment.
>
> B.
>
>
>
>
>
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